JPH0131628B2 - - Google Patents
Info
- Publication number
- JPH0131628B2 JPH0131628B2 JP55125663A JP12566380A JPH0131628B2 JP H0131628 B2 JPH0131628 B2 JP H0131628B2 JP 55125663 A JP55125663 A JP 55125663A JP 12566380 A JP12566380 A JP 12566380A JP H0131628 B2 JPH0131628 B2 JP H0131628B2
- Authority
- JP
- Japan
- Prior art keywords
- blade member
- drum
- photoreceptor
- image carrier
- toner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004140 cleaning Methods 0.000 claims description 20
- 108091008695 photoreceptors Proteins 0.000 description 21
- 230000000694 effects Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003831 antifriction material Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
- G03G21/0011—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a blade; Details of cleaning blades, e.g. blade shape, layer forming
- G03G21/0029—Details relating to the blade support
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cleaning In Electrography (AREA)
- Control Or Security For Electrophotography (AREA)
Description
【発明の詳細な説明】
技術分野
本発明はブレード型クリーニング装置を備えた
電子複写機に関する。DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to an electronic copying machine equipped with a blade-type cleaning device.
従来技術
電子複写機におけるブレード型クリーニング装
置とは、例えば第１図に示すように、感光体ドラ
ム１表面にゴム等の弾性体よりなるブレード部材
２を圧接せしめ、感光体ドラム１の回転に伴つて
その表面に残留するトナーをかき落とすようにな
したものである。BACKGROUND ART A blade-type cleaning device in an electronic copying machine is, for example, as shown in FIG. It is designed to scrape off the toner remaining on the surface.
この種のブレード型クリーニング装置におい
て、クリーニング効果を高める目的で、ブレード
部材は感光体ドラム表面に均一に圧接されるもの
であるが、クリーニング動作時、ブレード部材と
感光体面は適当なすべりをもつて接し、感光体表
面やブレード部材ができるだけ損傷しないように
されなければならず、上記ブレード部材の圧接
力、ゴム硬度及び圧接角度等も、このことを考慮
して設定される。然るに、このような設定条件は
通常、ドラムやブレード部材の使用状態における
摩擦力等を考慮して設定されるため、例えば感光
体やブレード部材が交換されたとき、あるいは機
械が最初に稼動するとき等（以下この状態を初期
状態と呼ぶ。）においては、感光体表面とブレー
ド部材との間の摩擦力が異常に大きく、上記すべ
り作用が働かない場合がある。特にセレン系感光
体を使用した場合、その表面は鏡面状態に近く、
未使用状態での摩擦力は大きい。このような初期
状態では、感光体やブレード部材の損傷あるいは
異常音の発生等の不都合が生じ、実用上大きな問
題となつていた。 In this type of blade-type cleaning device, the blade member is brought into uniform pressure contact with the surface of the photoreceptor drum in order to improve the cleaning effect, but during the cleaning operation, the blade member and the photoreceptor surface must have an appropriate amount of slippage. The contact force, rubber hardness, pressure angle, etc. of the blade member must be set in consideration of this, so that the surface of the photoreceptor and the blade member are not damaged as much as possible. However, such setting conditions are usually set taking into account the frictional force of the drum and blade members in use, so for example, when the photoreceptor or blade member is replaced, or when the machine is started for the first time. etc. (hereinafter this state will be referred to as the initial state), the frictional force between the surface of the photoreceptor and the blade member is abnormally large, and the above-mentioned sliding effect may not work. In particular, when a selenium-based photoreceptor is used, its surface is close to a mirror surface.
Frictional force is large when unused. In such an initial state, inconveniences such as damage to the photoreceptor or blade member or generation of abnormal noises occur, posing a serious problem in practical use.
目 的
本発明はこのような点に鑑みてなされたもの
で、感光体ドラム表面に現像剤が付着している
と、これがドラムとブレード部材との間の摩擦力
を減ずる作用を有することに着目し、感光体ドラ
ムあるいはブレード部材が交換又は新規に装着さ
れたことを検出し、これによつて次の感光体ドラ
ムの回転時、少くとも帯電、現像の処理を施すと
共に、少くともこの現像部分がクリーニング部分
に達するまでブレード部材を感光体ドラムから離
隔させておくことにより、初期状態においてブレ
ード部材に過大な力の加わるのを防止するように
なした電子複写機を提供することを目的とするも
のである。Purpose The present invention has been made in view of the above points, and focuses on the fact that when developer adheres to the surface of the photoreceptor drum, this has the effect of reducing the frictional force between the drum and the blade member. It detects that the photoreceptor drum or blade member has been replaced or newly installed, and when the photoreceptor drum is rotated next time, it performs at least charging and development processing, and at least this development part. To provide an electronic copying machine that prevents excessive force from being applied to a blade member in an initial state by separating the blade member from a photosensitive drum until the blade member reaches a cleaning part. It is something.
実施例
以下、本発明の実施例を図面に従つて説明す
る。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１図は電子複写機の要部の概略を示す図で、
矢印ａ方向に回動可能に支持された感光体ドラム
１の周囲には、帯電用チヤージヤ３、現像装置
４、転写用チヤージヤ５、除電あるいは前帯電用
チヤージヤ６、クリーニング装置７、イレーサラ
ンプ８等が順次配設され、感光体ドラム１の回動
に伴つて、露光部Ｅに照射される画像に対応する
トナー像を同期して搬送される転写紙Ｐ上に転写
し、転写後のドラム表面に残留するトナーをクリ
ーニング装置７のブレード部材２によつてかき落
とし、感光体ドラム１はくり返し使用されるもの
である。 Figure 1 is a diagram showing the outline of the main parts of an electronic copying machine.
Around the photosensitive drum 1, which is rotatably supported in the direction of arrow a, there are a charging charger 3, a developing device 4, a transfer charger 5, a charger 6 for neutralizing or pre-charging, a cleaning device 7, an eraser lamp 8, etc. are sequentially arranged, and as the photoreceptor drum 1 rotates, the toner image corresponding to the image irradiated onto the exposure area E is transferred onto the transfer paper P that is conveyed in synchronization, and the drum surface after transfer is transferred. The toner remaining on the photosensitive drum 1 is scraped off by the blade member 2 of the cleaning device 7, and the photosensitive drum 1 is used repeatedly.
クリーニング装置７は、ポリウレタンゴム等の
柔軟材よりなるブレード部材２と、ブレード部材
２をその先端部に接合された金属板等の支持板２
１と、この支持板２１を保持すると共に支点軸２
３によつて回動可能な保持手段２２と、保持手段
２２を矢印ｂ方向に付勢し、ブレード部材２を感
光体ドラム１表面に圧接させるためのスプリング
２４と、スプリング２４の付勢力に抗してブレー
ド部材２をドラム表面から離隔せしめるためのカ
ム装置２５等からなり、後述する如きタイミング
でカム装置２５を作動させることによりブレード
部材２がドラム表面に対して接離可能に構成され
る。なお、ブレード部材２の支持及び接離の機構
等は適宜変更可能である。 The cleaning device 7 includes a blade member 2 made of a flexible material such as polyurethane rubber, and a support plate 2 such as a metal plate joined to the tip of the blade member 2.
1 and the support plate 21 and the fulcrum shaft 2
3, a spring 24 for urging the holding means 22 in the direction of arrow b and pressing the blade member 2 against the surface of the photosensitive drum 1, and a spring 24 for resisting the urging force of the spring 24. The cam device 25 is configured to move the blade member 2 away from the drum surface by operating the cam device 25 at the timing described later, so that the blade member 2 can move toward and away from the drum surface. Note that the mechanism for supporting the blade member 2, approaching and separating it, etc. can be changed as appropriate.
第２図に感光体ドラム１とクリーニング装置７
の着脱を検知するためのスイツチSW１，SW２
を示す。第２図において、矢印Ｃは感光体ドラム
１の取りはずし方向を示し、矢印ｄはクリーニン
グ装置７の取りはずし方向を示すものであり、
各々取りはずしたときに検知スイツチSW１，
SW２が切換るように構成されている。スイツチ
SW１は感光体ドラム１のフランジ部１１にその
アクチユエータが当接可能な位置に設けられ、ド
ラム１が正規の位置に装着されているときにアク
チユエータが押されてドラム１の装着を検出し、
スイツチSW２はクリーニング装置７のケーシン
グ７１が正規の位置に装着されているときにアク
チユエータが押されてその装着を検出するように
それぞれ位置決めされる。このスイツチSW１，
SW２は、後述するように、ドラム１及びクリー
ニング装置７の着脱動作を検知し、ドラム又はブ
レード交換時の動作モードを設定するための信号
を発するために利用されるものであるが、さら
に、ドラム１あるいはクリーニング装置７が所定
位置にセツトされているか否かを検知する安全ス
イツチとしても機能する。 Figure 2 shows the photoreceptor drum 1 and cleaning device 7.
Switches SW1 and SW2 to detect attachment and detachment of
shows. In FIG. 2, arrow C indicates the direction in which the photosensitive drum 1 is removed, and arrow d indicates the direction in which the cleaning device 7 is removed.
When each is removed, the detection switch SW1,
SW2 is configured to switch. switch
The SW1 is provided at a position where its actuator can come into contact with the flange portion 11 of the photoreceptor drum 1, and when the actuator is pushed when the drum 1 is installed in the normal position, it detects that the drum 1 is installed.
The switches SW2 are positioned so that when the casing 71 of the cleaning device 7 is installed in a normal position, the actuator is pressed and the installation is detected. This switch SW1,
As described later, SW2 is used to detect the attachment/detachment of the drum 1 and cleaning device 7 and to issue a signal for setting the operation mode when replacing the drum or blade. 1 or the cleaning device 7 is set at a predetermined position.
第３図に、複写機のシーケンス制御等に用いら
れるマイクロコンピユータシステムの中央演算処
理装置（以下CPUと略記する。）５０と、上述の
スイツチSW１，SW２等との関連を示す。CPU
５０には、複写機内の図示しない各検出機構及び
複写枚数、複写画像濃度、複写倍率等を設定する
ためのスイツチ手段等からの信号が入力され、こ
れらの信号入力に対応してプログラムされた制御
信号が出力されるもので、マイクロコンピユータ
システム及びCPUの具体的な構成は、これ自体
公知であり、また本発明と直接的な関係がないの
で、説明は省略する。 FIG. 3 shows the relationship between a central processing unit (hereinafter abbreviated as CPU) 50 of a microcomputer system used for sequence control of a copying machine and the above-mentioned switches SW1, SW2, etc. CPU
50 receives signals from each detection mechanism (not shown) in the copying machine and switch means for setting the number of copies, copy image density, copy magnification, etc., and controls programmed in response to these signal inputs. Since signals are output, the specific configurations of the microcomputer system and CPU are well known per se, and have no direct relation to the present invention, so a description thereof will be omitted.
CPU５０からは上述の如く、プログラムされ
た制御信号あるいはスイツチ手段の判別のための
信号等が出力されるが、ドラム１が定位置にある
か否かを判定するには、所定のタイミングで出力
ポート（P1）から判定信号を出力し、スイツチ
SW１が閉であればその信号が入力ポート（A1）
に入力されてドラム１が定位置にあると判定し、
判定信号の出力時にスイツチSW１が開であれば
ドラム１が定位置にないこと、即ち、装着ミスか
あるいはドラム交換のために取はずされたと判定
する。この判定信号は、CPU５０から、プログ
ラムの１ルーチンに１回ずつ出力し、ドラム位置
を常時監視するようにしても良いし、ドラム交換
時等必要時のみ出力しても良い。クリーニング装
置７が定位置にあるか否かを判定する場合も同様
であつて、出力ポート（P2）からスイツチSW２
を介して入力ポート（A2）に判定信号が入力さ
れる。 As mentioned above, the CPU 50 outputs programmed control signals or signals for determining the switching means, but in order to determine whether or not the drum 1 is in the normal position, it is necessary to A judgment signal is output from (P 1 ) and the switch is activated.
If SW1 is closed, the signal is input to the input port (A 1 )
is input and determines that drum 1 is in the normal position,
If the switch SW1 is open when the determination signal is output, it is determined that the drum 1 is not in the normal position, that is, it is determined that the drum 1 has been installed incorrectly or has been removed for replacement. This determination signal may be output from the CPU 50 once per routine of the program to constantly monitor the drum position, or may be output only when necessary, such as when replacing the drum. The same goes for determining whether the cleaning device 7 is in the normal position.
A determination signal is input to the input port (A 2 ) via the input port (A 2 ).
このような構成において、通常の使用状態か
ら、スイツチSW１又はSW２が開となると、ド
ラムあるいはクリーニング装置７のブレード部材
２の交換であることを判定し、複写動作を阻止状
態に保つと共に、スイツチSW１，SW２の復帰
に伴つて、例えば次のメインスイツチあるいはプ
リントスイツチのON時に、交換時モードを自動
的に実行する。なお、スイツチSW１，SW２の
開の検知のみでは交換と装着ミスとの区別がつき
難いため、交換作業時にはサービスマン等によつ
てマニユアルスイツチSWNをONし、これによ
つて交換動作の確認をするようにしても良い。 In such a configuration, when the switch SW1 or SW2 is opened under normal use, it is determined that the drum or the blade member 2 of the cleaning device 7 is to be replaced, and the copying operation is kept in the inhibited state, and the switch SW1 is opened. , SW2 is restored, the replacement mode is automatically executed, for example, when the main switch or print switch is turned on next time. Note that it is difficult to distinguish between replacement and incorrect installation by simply detecting that switches SW1 and SW2 are open, so during replacement work, a service person or the like should turn on manual switch SWN and confirm replacement operation. You can do it like this.
交換時モードとは、例えば第４図のタイムチヤ
ートに示す如き動作である。即ち、カム２５を駆
動してブレード部材２をドラム表面から離し、例
えばプリントスイツチのONに伴つて、メインモ
ータ（図示せず）がONされてドラム１が回転駆
動され、同時に帯電用チヤージヤ３がONし、さ
らに現像器４がONしてドラム１表面にトナーを
付着させ、その後カム２５をさらに駆動してブレ
ード部材７をドラム表面に圧接させてドラム１を
１回転以上させた後待期状態とするものである。
このとき、ブレード部材２をドラム表面に圧接す
るタイミングは、少くとも帯電され、現像された
部分がブレード部材２の圧接部に達した後となる
ように時間制御される。 The exchange mode is an operation as shown in the time chart of FIG. 4, for example. That is, the cam 25 is driven to separate the blade member 2 from the drum surface, and, for example, when a print switch is turned on, the main motor (not shown) is turned on to rotate the drum 1, and at the same time the charging charger 3 is turned on. The developing unit 4 is turned on, and the toner is attached to the surface of the drum 1. After that, the cam 25 is further driven to press the blade member 7 against the drum surface, and the drum 1 is rotated more than once, and then the standby state is reached. That is.
At this time, the timing at which the blade member 2 is brought into pressure contact with the drum surface is controlled so that at least the charged and developed portion reaches the pressure contact portion of the blade member 2.
なお、上記動作は、ドラム１あるいはクリーニ
ング装置７の交換作業終了後、SW１，SW２が
閉となつている条件下で、メインスイツチをON
することにより、複写機のウオーミングアツプ
（ヒータの加熱等に伴う立上り）を実行すると共
に、適宜なタイマを設定しておき、これによつて
上記動作を自動的に実行させても良い。 The above operation is performed by turning on the main switch after replacing the drum 1 or cleaning device 7, while SW1 and SW2 are closed.
By doing so, the copying machine is warmed up (starting up due to heating of the heater, etc.), and an appropriate timer may be set to automatically execute the above operation.
交換時モードは、CPU５０を含むマイクロコ
ンピユータシステム内に設定されたタイマ等によ
り、所定時間経過後、メインモータを停止せしめ
て終了し、その後ウオーミングアツプの完了を待
つて複写可能状態となる。このとき、メインモー
タ、帯電、現像等の作動時間は、感光体表面、ブ
レード部材及びトナーの材質等に応じて適宜に設
定し得るが、ドラム１の表面全域にトナーが付着
するよう、帯電、現像はドラム１の１回転以上に
わたつて実行することが好ましい。 The replacement mode is terminated by stopping the main motor after a predetermined time has elapsed by a timer set in the microcomputer system including the CPU 50, and then waits for the completion of warming up to become ready for copying. At this time, the operating time of the main motor, charging, developing, etc. can be set appropriately depending on the photoreceptor surface, the blade member, the toner material, etc. It is preferable that the development is performed over one or more revolutions of the drum 1.
なお、以上の説明における交換時モードは、複
写機の最初の稼動時に実行しても良く、さらに
は、使用期間中であつてドラム１やブレード部材
２を交換しないときであつても、ブレード部材２
の部分で摩擦音が発生したときや、縮小複写時の
ように、感光体表面に対してトナーの付着する部
分としない部分とが長時間にわたつて生じたとき
等においても実行できるように、例えばマニユア
ルスイツチSWMのONのみによつてもこのモー
ドがセツトされるようにプログラムしておいても
良い。 Note that the replacement mode in the above explanation may be executed when the copying machine is operated for the first time, and even when the drum 1 and the blade member 2 are not replaced during the period of use, the blade member 2
For example, it can be executed even when friction noise occurs in the area, or when there are parts where toner adheres to the photoconductor surface and parts where it does not for a long time, such as during reduction copying. This mode may be programmed to be set only by turning on the manual switch SWM.
また、交換時モードでは、ドラム１、帯電用チ
ヤージヤ３、現像装置４及びクリーニング装置７
が作動し、これによつて初期状態における感光体
表面とブレード部材２との間に異常な摩擦力が作
用するのを防止するものであるが、他の初期条
件、即ち、感光体の感度あるいは湿度による悪影
響等を補正するために、特に感光体ドラム１の交
換時には、交換時モードとして、上述の動作の後
に、ドラム１とチヤージヤ３，６及びイレーサ８
のみを作動させる制御を行つても良い。 In addition, in the replacement mode, the drum 1, the charging charger 3, the developing device 4, and the cleaning device 7
is activated, thereby preventing abnormal frictional force from acting between the surface of the photoreceptor and the blade member 2 in the initial state, but other initial conditions, such as the sensitivity of the photoreceptor or In order to correct the adverse effects of humidity, etc., especially when replacing the photoreceptor drum 1, the drum 1, chargers 3, 6, and eraser 8 are
Control may also be performed to operate only the
さらに、上記実施例においては、電子写真感光
体に帯電、露光、現像の処理を施して、これを転
写する方式の複写機を示したが、本発明は、感光
体に帯電、露光して静電像を形成し、これに対応
して誘電体表面に静電像を形成し、誘電体表面の
静電像を現像して転写するタイプの複写機にも用
いることができる。この場合はトナー像を保持す
る線担体は誘電体ドラムであつて、ブレード部材
はこの誘電体ドラムに対して圧接され、転写後の
残留トナーを除去するように構成されるから、交
換時モードとしては、この誘電体ドラム上にトナ
ーを付着させる工程と、このトナーの付着した部
分がブレード部材部に達した後にブレードを誘電
体表面に圧接させる工程とを実行する。 Further, in the above embodiment, a copying machine is shown in which the electrophotographic photoreceptor is charged, exposed, and developed and transferred, but the present invention is capable of charging and exposing the photoreceptor to static image transfer. It can also be used in a type of copying machine that forms an electric image, forms a corresponding electrostatic image on a dielectric surface, and develops and transfers the electrostatic image on the dielectric surface. In this case, the line carrier that holds the toner image is a dielectric drum, and the blade member is in pressure contact with this dielectric drum and is configured to remove residual toner after transfer. The method includes a step of depositing toner on the dielectric drum, and a step of pressing the blade against the dielectric surface after the toner-attached portion reaches the blade member portion.
効 果
以上説明したように本発明は、像担体とブレー
ド部材のいずれか一方又はその両方が交換又は新
規に装着されたとき、ブレード部材を像担体表面
から離隔させた状態で、像担体表面にトナーを付
着させる処理を施し、このトナーの付着した部分
が上記ブレード部材部に達した後、該ブレード部
材を像担体表面に圧接させるようになした動作モ
ードを実行可能とした複写機であるから、複写機
の最初の稼動時、あるいは、感光体又はブレード
部材の交換時等において、感光体（像担体）やブ
レード部材の未使用状態での初期使用に伴う像担
体とブレード部材との間に生じる異常な摩擦力
を、トナー自体が摩擦力を減ずる効果を有するこ
とを利用して防止したものであり、ブレード部材
等に特殊な減摩処理を施さなくても良く、実用上
きわめて利点の多いものである。なお、現像剤中
に減摩材料を添加すればこの効果はより顕著にな
る。Effects As explained above, when either the image carrier, the blade member, or both are replaced or newly installed, the blade member is separated from the image carrier surface, and the blade member is attached to the image carrier surface. This is because the copying machine is capable of executing an operation mode in which the toner is applied to the surface of the image carrier and the blade member is brought into pressure contact with the surface of the image carrier after the toner-adhered portion reaches the blade member portion. , when the copying machine is first operated, or when the photoreceptor or blade member is replaced, etc., when the photoreceptor (image carrier) or blade member is used for the first time in an unused state, there may be a gap between the image carrier and the blade member. The abnormal frictional force that occurs is prevented by utilizing the fact that the toner itself has the effect of reducing the frictional force, and there is no need to apply special antifriction treatment to the blade components, which has many practical advantages. It is something. Note that this effect becomes more pronounced if an anti-friction material is added to the developer.
第１図は本発明複写機の概略構成図、第２図は
その要部斜視図、第３図は制御用マイクロコンピ
ユータシステムと各検出スイツチの関係を示す回
路図、第４図は交換時モードの具体例を示すタイ
ムチヤートである。
１……感光体ドラム、２……ブレード部材、２
１……支持板、２２……保持手段、２５……カム
装置、３……帯電用チヤージヤ、４……現像装
置、７……クリーニング装置、SW１，SW２…
…定位置検出スイツチ、SWM……マニユアルス
イツチ、５０……中央演算処理装置。
Figure 1 is a schematic configuration diagram of the copying machine of the present invention, Figure 2 is a perspective view of its main parts, Figure 3 is a circuit diagram showing the relationship between the control microcomputer system and each detection switch, and Figure 4 is the replacement mode. This is a time chart showing a specific example. 1... Photosensitive drum, 2... Blade member, 2
DESCRIPTION OF SYMBOLS 1...Support plate, 22...Holding means, 25...Cam device, 3...Charging charger, 4...Developing device, 7...Cleaning device, SW1, SW2...
...Fixed position detection switch, SWM...Manual switch, 50...Central processing unit.
Claims (1)
写機において、ブレード部材が圧接される像担体
とブレード部材のいずれか一方又はその両方が交
換又は新規に装着されたとき、上記ブレード部材
を像担体表面から離隔させた状態で、像担体表面
にトナーを付着させる処理を施し、該トナーの付
着した像担体部分が上記ブレード部材部分に達し
た後、該ブレード部材を像担体表面に圧接させる
ようになした動作モードを実行可能としたことを
特徴とする複写機。1. In an electronic copying machine having a blade-type cleaning device, when either or both of the image carrier and the blade member to which the blade member is pressed are replaced or newly installed, the blade member is separated from the surface of the image carrier. an operation mode in which the toner is applied to the surface of the image carrier in this state, and after the part of the image carrier to which the toner is attached reaches the blade member part, the blade member is brought into pressure contact with the surface of the image carrier. A copying machine characterized by being capable of executing.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55125663A JPS5749977A (en) | 1980-09-09 | 1980-09-09 | Copying machine |
| DE19813128388 DE3128388A1 (en) | 1980-09-09 | 1981-07-17 | Electronic copier |
| US06/300,973 US4396276A (en) | 1980-09-09 | 1981-09-09 | Electronic copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55125663A JPS5749977A (en) | 1980-09-09 | 1980-09-09 | Copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5749977A JPS5749977A (en) | 1982-03-24 |
| JPH0131628B2 true JPH0131628B2 (en) | 1989-06-27 |
Family
ID=14915571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55125663A Granted JPS5749977A (en) | 1980-09-09 | 1980-09-09 | Copying machine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4396276A (en) |
| JP (1) | JPS5749977A (en) |
| DE (1) | DE3128388A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD889564S1 (en) * | 2018-07-03 | 2020-07-07 | Tomy Company, Ltd. | Spinning top toy |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58182674A (en) * | 1982-04-20 | 1983-10-25 | Mita Ind Co Ltd | Cleaning device of electrostatic copying machine |
| JPS5928181A (en) * | 1982-08-10 | 1984-02-14 | Toshiba Corp | Picture forming device |
| JPS5974582A (en) * | 1982-10-20 | 1984-04-27 | Konishiroku Photo Ind Co Ltd | Blade cleaning device |
| US4702591A (en) * | 1984-11-09 | 1987-10-27 | Canon Kabushiki Kaisha | Cleaning device for an image forming apparatus |
| DE3667111D1 (en) * | 1985-01-31 | 1989-12-28 | Konishiroku Photo Ind | Image forming apparatus |
| EP0203398B1 (en) * | 1985-04-30 | 1990-04-04 | Kabushiki Kaisha Toshiba | Image forming apparatus |
| US4673303A (en) * | 1985-10-07 | 1987-06-16 | Pitney Bowes Inc. | Offset ink jet postage printing |
| JPS6390273U (en) * | 1986-11-29 | 1988-06-11 | ||
| JPS63301984A (en) * | 1986-12-11 | 1988-12-08 | ニツポン・ケンテツク・カイシヤ・リミテツド | Cleaning apparatus |
| JP2708459B2 (en) * | 1988-04-06 | 1998-02-04 | 株式会社リコー | Cleaning device in copying machine |
| JPH0283556A (en) * | 1988-09-20 | 1990-03-23 | Minolta Camera Co Ltd | Color image forming device |
| US5084739A (en) * | 1991-01-22 | 1992-01-28 | Eastman Kodak Company | Self-loading cleaning blade and holder therefor |
| US5396320A (en) * | 1993-12-27 | 1995-03-07 | Xerox Corporation | Apparatus and method for cleaning a substrate in a printing apparatus |
| JPH10123899A (en) * | 1996-10-21 | 1998-05-15 | Canon Inc | Image forming device |
| JP5455993B2 (en) | 2011-08-30 | 2014-03-26 | キヤノン株式会社 | Cleaning device, process cartridge, and image forming apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5136949A (en) * | 1974-09-24 | 1976-03-29 | Ricoh Kk | |
| JPS5352133A (en) * | 1976-10-22 | 1978-05-12 | Canon Inc | Electrophotographic method |
| JPS53143335A (en) * | 1977-05-20 | 1978-12-13 | Ricoh Co Ltd | Cleaning device for zerography |
| JPS5479638A (en) * | 1977-12-07 | 1979-06-25 | Canon Inc | Image forming device |
| JPS5543534A (en) * | 1978-09-21 | 1980-03-27 | Copyer Co Ltd | Cleaning method |
| JPS5512245B2 (en) * | 1977-09-17 | 1980-03-31 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE755383A (en) * | 1969-08-29 | 1971-03-01 | Xerox Corp | APPARATUS FOR THE CONTROL OF DEVELOPMENT ELECTRODES |
| US3848993A (en) * | 1973-05-03 | 1974-11-19 | Xerox Corp | Supported developer blade cleaning |
| US3877413A (en) * | 1973-06-18 | 1975-04-15 | Eastman Kodak Co | Auto bias control apparatus |
| NL179318C (en) * | 1976-01-30 | 1986-08-18 | Oce Van Der Grinten N V P A Oc | CONTROL FOR A COPIER. |
| JPS5328432A (en) * | 1976-08-20 | 1978-03-16 | Ricoh Co Ltd | Recovering method of remaining toner and device therffor |
| JPS5634920Y2 (en) * | 1976-11-01 | 1981-08-17 | ||
| JPS5497040A (en) * | 1978-01-17 | 1979-07-31 | Canon Inc | Developing agent conveyor |
| US4215931A (en) * | 1978-04-18 | 1980-08-05 | Olympus Optical Co., Ltd. | Electrophotographic apparatus |
| US4247196A (en) * | 1978-04-26 | 1981-01-27 | Minolta Camera Kabushiki Kaisha | Cleaning device for use in electrophotographic copying machines |
| JPS5512245U (en) * | 1978-07-07 | 1980-01-25 |
-
1980
- 1980-09-09 JP JP55125663A patent/JPS5749977A/en active Granted
-
1981
- 1981-07-17 DE DE19813128388 patent/DE3128388A1/en not_active Withdrawn
- 1981-09-09 US US06/300,973 patent/US4396276A/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5136949A (en) * | 1974-09-24 | 1976-03-29 | Ricoh Kk | |
| JPS5352133A (en) * | 1976-10-22 | 1978-05-12 | Canon Inc | Electrophotographic method |
| JPS53143335A (en) * | 1977-05-20 | 1978-12-13 | Ricoh Co Ltd | Cleaning device for zerography |
| JPS5512245B2 (en) * | 1977-09-17 | 1980-03-31 | ||
| JPS5479638A (en) * | 1977-12-07 | 1979-06-25 | Canon Inc | Image forming device |
| JPS5543534A (en) * | 1978-09-21 | 1980-03-27 | Copyer Co Ltd | Cleaning method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD889564S1 (en) * | 2018-07-03 | 2020-07-07 | Tomy Company, Ltd. | Spinning top toy |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3128388A1 (en) | 1982-06-16 |
| JPS5749977A (en) | 1982-03-24 |
| US4396276A (en) | 1983-08-02 |
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